Update API

play-services-api/src/main/aidl/com/google/android/gms/checkin/internal/ICheckinService.aidl

@@ -0,0 +1,5 @@
+package com.google.android.gms.checkin.internal;
+
+interface ICheckinService {
+    String getDeviceDataVersionInfo();
+}

play-services-api/src/main/java/com/google/android/gms/playlog/internal/LogEvent.java

@@ -47,7 +47,7 @@ public class LogEvent extends AutoSafeParcelable {
         return "LogEvent{" +
                 "eventTime=" + new Date(eventTime) +
                 ", tag='" + tag + '\'' +
-                ", data='" + new String(data) + '\'' +
+                ", data=" + (data == null ? "null" : ('\'' + new String(data) + '\'')) +
                 '}';
     }